Stance knee caves on the reach
Glute med fails on the single-leg mini-squat during the reach.
Overactive muscles
Adductor complexTFL
Corrective work
Foam RollAdductors↗Foam RollTFL↗StretchButterfly adductor stretch↗Glute med fails on the single-leg mini-squat during the reach.
Hip hinge fails; the reach becomes a reach from the spine.